Cleaning your concrete driveway on occasion and keeping it sealed are the best measures you can take to keep it looking its best. How often you clean and reseal will depend on the weather conditions the concrete is exposed to and the amount of vehicle traffic it receives. Generally, you should reseal a concrete driveway every two years or so, or when the finish begins to show wear.
Remove Stains Immediately
While a sealer will help to protect concrete from stain absorption, it’s still a good idea to remove oil, gasoline, grease and other spills as soon as possible. If the concrete does discolor, pressure washing and certain cleaning chemicals will remove most stains.
Avoid Using Deicing Chemicals
Using deicers on your concrete driveway in the winter can cause surface damage-primarily scaling and spalling-by forcing the thawing and refreezing of moisture. Products containing ammonium nitrates and ammonium sulphates are especially harmful because they will actually attack the concrete chemically. Rock salt (sodium chloride) or calcium chloride will do less damage, but they can harm vegetation and corrode metal. As an alternative, use sand for traction.
Treat With Care
Although concrete is one of the most durable paving materials for driveway construction, the typical residential driveway isn’t engineered to support heavy vehicles (like a huge moving van) and large construction equipment. Also use care when plowing or shoveling your driveway. Avoid the use of metal blades that might scrape or scratch the surface.